OP-755 Part 2 Pages 197-401 - Personal Page of GENE SLOVER
OP-755 Part 2 Pages 197-401 - Personal Page of GENE SLOVER
OP-755 Part 2 Pages 197-401 - Personal Page of GENE SLOVER
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334<br />
274349-4 over the end <strong>of</strong> the rod to prevent injury to the oil<br />
seal packing. The oil seal leader will be found in the #1 spare<br />
parts box. wilen assembling new Garlock packings 274260-2 the<br />
packings are to be fitted to hold the friction <strong>of</strong> the piston<br />
rod in the oil seal and packing to a maximum<strong>of</strong> 20 pounds pull<br />
on the pI st on r od, This can be determined approximately by<br />
lifting the valve assembly by the end <strong>of</strong> the piston rod 274259-9.<br />
The piston rod is to slide in its packing and oil seal by the<br />
weight <strong>of</strong> the body and its attached parts.<br />
172. To remove the control linkage assembly (dr . no.<br />
274251). - First disconnect the control rod, which connects<br />
onto the lever 274253-3. Remove the screw 274252-5 which connects<br />
the link 274253-4 to the B-end control rod, which passes<br />
through the gun girder cap. Next remove the screw 274252-6<br />
from the clevis 274253-6, which connects to the A-end control<br />
lever. Remove the four bracket mounting screws, and the as-<br />
.sembly can be forced <strong>of</strong>f the dowel pins and can be removed from<br />
the turret to facilitate further dismantling.<br />
173. To dismantle the control linkage assembly (dr . no.<br />
274251). - Remove the screws 274252-5 and the control rod<br />
274254-2 or 274251-2, and the link 274253-4 can be dismantled.<br />
First loosen the clamp bolt 220718-2 from the inner lever<br />
274253-1 and slide the lever along the shaft 274253-2 until<br />
the two keys 274252-4 can be removed. Next remove the clamp<br />
bolt from one <strong>of</strong> the end levers, and remove the lever and its<br />
keys from the 'shaft. The shaft 274253-2 with the other lever<br />
attached may be forced out <strong>of</strong> the inner lever and the bracket<br />
274.252-1. Further dismantling is evident by examination <strong>of</strong><br />
'the assembly drawing 274251.<br />
174. To reassemble the control linkage assembly (dr. no.<br />
274251). - The parts are to be thoroughly cleaned and are to<br />
be reassembled in reverse <strong>of</strong> the dismantling instructions.<br />
All parts are to be checked to be free from binding and after<br />
the assembly is reinstalled in the turret the control rods are<br />
. to be readjusted as explained in the IIPreliminary Adjustments " .<br />
175. To dismantle the dashpot cylinder assembly (dr. no.<br />
274265). - The assembly is to be drained by removing the filler<br />
cap 274266-7 and turning the assembly upside downto drain the<br />
oil from the reservoir 274266-9. Loosening the screws 196780-4<br />
and the cover 274267-7 will aid in draining the oil. Remove<br />
the lock nut 274339-9 and the clevis 274266-5. Inserting a<br />
pin through the hole in the piston rod 274266-13 will prevent<br />
the rod from turning. Remove the cover 274267-7 and the piston<br />
rod 274266-13 can be pushed out <strong>of</strong> the body 274268-1. Remove<br />
the screw 180226-6 from the upper cover 274267-11, and<br />
the cover, washer 274267-5 and the packing 274266-10 can be<br />
dismantled. The feed control valves 274267-1 and the spring
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